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bq25896 - wireless in

Paul Antunes
Intellectual 2550 points
Other Parts Discussed in Thread: BQ25896, BQ51021

Dear BMS team,

Does the bq25896 allow operation from wireless charging input ?

More precisely, I would connect the output of bq51021 to the charger input pin (VBUS) of bq25896.

thanks

Paul

  • 0
    TI__Guru**** 152956 points
    Yes, we have tested this configuration. We recommend setting ILIM to a few 100mA below the wireless receiver max output current and force absolute VINDPM (as opposed to relative VINDPM) to a few 100mV below the maximum output voltage. If using a current probe to measure the current from the receiver to the charger, be aware that the probe may pick up the switching frequency from the receiving and make it appear as if the the receiver's output current /charger's input current is oscillating.